check process mysqld with pidfile /var/run/mysqld/mysqld.pid
  group mysql
  start program = "/usr/sbin/service mysql start"
  stop  program = "/usr/sbin/service mysql stop"
  if failed host localhost port 3306 protocol mysql with timeout 15 seconds for 3 times within 4 cycles then restart
  if failed unixsocket /var/run/mysqld/mysqld.sock protocol mysql for 3 times within 4 cycles then restart
  if 5 restarts with 5 cycles then timeout